152513253330521 has 4 divisors (see below), whose sum is σ = 152812886441700. Its totient is φ = 152213620219344.

The previous prime is 152513253330443. The next prime is 152513253330551. The reversal of 152513253330521 is 125033352315251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134017783326025 + 18495470004496 = 11576605^2 + 4300636^2 .

It is a cyclic number.

It is not a de Polignac number, because 152513253330521 - 2³⁸ = 152238375423577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152513253330551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149816554826 + ... + 149816555843.

It is an arithmetic number, because the mean of its divisors is an integer number (38203221610425).

Almost surely, 2^{152513253330521} is an apocalyptic number.

It is an amenable number.

152513253330521 is a deficient number, since it is larger than the sum of its proper divisors (299633111179).

152513253330521 is an equidigital number, since it uses as much as digits as its factorization.

152513253330521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299633111178.

The product of its (nonzero) digits is 405000, while the sum is 41.

The spelling of 152513253330521 in words is "one hundred fifty-two trillion, five hundred thirteen billion, two hundred fifty-three million, three hundred thirty thousand, five hundred twenty-one".